Chapter 2 Command System  RIGOL 
DG800 Programming Guide  2-49 
:ROSCillator:SOURce:CURRent? 
 
Syntax 
:ROSCillator:SOURce:CURRent? 
 
Description 
Queries the currently selected system clock source. 
 
Remarks 
You can send the 
:ROSCillator:SOURce command to set the system clock source to Internal or External. 
 
Return Format 
The query returns INT or EXT. 
 
Example 
:ROSC:SOUR:CURR?        /*Queries the currently selected system clock source and the query returns INT.*/